Main frame of chairs
Description
Claims
The ornamental design for main frame of chairs, as shown and described.
Referenced Cited
U.S. Patent Documents
Patent History
Patent number: D650617
Type: Grant
Filed: Mar 19, 2010
Date of Patent: Dec 20, 2011
Inventor: Yucheng Chen (Guangzhou)
Primary Examiner: Brian N Vinson
Application Number: 29/357,921
Type: Grant
Filed: Mar 19, 2010
Date of Patent: Dec 20, 2011
Inventor: Yucheng Chen (Guangzhou)
Primary Examiner: Brian N Vinson
Application Number: 29/357,921
Classifications
Current U.S. Class:
D6/500;
D6/366